Office time/task management software for accounting office

Looking for office time/task management software related to clients.

Office is an accounting/CPA office and needs something to help with the following:

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General items that are important:

• easy to read daily/weekly view to see calendar and tasks on one screen
  everything to do for a day including calendar and tasks should be on one screen, not have to check multiple places to know what needs to be done
• tasks need to send notifications to 2 people, person who created the task and the person who completed the task
• must integrate with google workspace calendar
• would be nice integrate with google workspace tasks
• everything revolves around clients, managing client lists and tagged to calendar and tasks would be nice

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Reception Person:

• view everyone's schedule
• add/edit other peoples calendar
• add/edit other peoples tasks

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Data Entry Person:

• have client tasks that need to be done regularly, monthly/quarterly/annually
• recurring tasks need to be automatically created on a schedule and need to have a deadline
  e.g. a task automatically is created on the 10th of everything month that needs to be completed by the 15th of every month
• client tasks can have multiple steps involving more than one person
  e.g.
  • #1 data entry person enters/prepares books/data
  • #2 CPA reviews, approves or sends notes back to data entry on items to change/correct. if changes needed, we go back to step #1
  • #3 data entry person submits/files

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CPA person:

• schedule meetings/calls with clients
• easy to manage task priority and completion
• view everyone's schedule
• add/edit other peoples calendar
• add/edit other peoples tasks

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Thanks.